Code Ape Tech Column
Dec 6, 2020 · Databases
Why Redis Memory Remains High After Deleting Keys and How to Fix Fragmentation
This article explains why Redis memory usage stays high after deleting keys, describes memory fragmentation causes, shows how to detect fragmentation with INFO memory and mem_fragmentation_ratio, and provides practical steps and configuration options to clean and prevent fragmentation.
Active DefragmentationDatabase PerformanceINFO command
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